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Mining Mask/Mine/Mines Dust Respirator Type MSD-505 DeVilbiss (De Vilbiss) in Original Box + Two Extra Valves Vintage ca 1950s   <b><span style='color:red'>*****PRIORITY MAIL SHIPPING INCLUDED – DOMESTIC ORDERS ONLY!*****</span></b><span style='color:purple'>

Title   Mining Mask/Mine/Mines Dust Respirator Type MSD-505 DeVilbiss (De Vilbiss) in Original Box + Two Extra Valves Vintage ca 1950s *****PRIORITY MAIL SHIPPING INCLUDED – DOMESTIC ORDERS ONLY!*****

Seller ID   Mining Mask Dust Respirator De Vilbiss

***Combined shipping is always available for multiple purchases when the “SHIPPING INCLUDED” shipping method listed is the same for each item purchased AND each item can be safely packaged together. Otherwise, multiple purchases without the same shipping method listed AND which require separate packaging & shipping will be shipped separately at no additional charge to you (to ensure the greatest possible degree of protection for each item during transit). Additionally, because the shipping methods that are included within each listing do vary from item to item, it is important to be aware that delivery transit times will likewise vary per item (kindly refer to “Store Policies” for detailed information regarding all shipping methods & delivery transit times applicable to each respective method). Thus, should you desire a more expedient shipping method than that which is already included for any particular item, upon checkout simply select the expedited shipping option that best suits your needs (Priority Mail, Express Mail.)!

Item/Description: Vintage ca 1950s DeVilbiss (De Vilbiss) Type MSD-505 Dust Respirator face mask/mining mask, Bureau of Mines approved, in original box with extra valves.

Excerpted Packaging Information/Instructions:

***Exterior of box provides information and instructions pertaining to: “Testing for Positive Fit”, “Permissible Respirator for Dusts”, and “Instructions for Care & Use”.

Permissible Respirator for Dusts. “Approval No. 2154 - Department of the Interior, Bureau of Mines ‘Seal of Approval’ - Issued to The De Vilbiss Company. Toledo, Ohio, U.S.A. Approved for protection against the inhalation of dusts that are not significantly more toxic than lead (dispersoids or particulate matter formed by the disintegration of solid materials by such processes as crushing, grinding and abrading).

The approved assembly consists of: BM-2121 facepiece and BM-2154 filter...

CAUTION. This respirator removes only dispersoids from the air. It gives no protection against gases, vapors or an insufficiency of oxygen...”

MSD-505 Respirator Instructions for Care & Use: “The MSD-505 Respirator has been approved by the US Bureau of Mines for Dusts - not significantly more toxic than lead. It is comfortable, with very little breathing resistance to cause fatigue. Wear it regularly to protect yourself against the hazards listed on the Approval Notice on the box...”

***Interior box flaps contain information and instructions as regards: “Fitting”, the “Filter Unit,” and “How to Clean Respirator Parts”.

Age/Period: Vintage - ca 1950s ((the date applicable to Patent #2,514,145, which is referenced on the box exterior, is 07/04/50; the date applicable to Patent #2,269,461 is 01/13/42; the third patent date referenced on the box has a “rubbed off” number which cannot be read and thus not researched, but it dates to sometime in between the two preceding patent issue dates, ca 1942-1950)

Manufacturer/Identification/Markings/Country of Origin:

*Box is marked “The DeVilbiss Company - Toledo, Ohio” (alternatively spelled “De Vilbiss” or misspelled “DeVilbis” & “De Vilbix”) AND “U.S. Patents 2,269,461; 2,?66,164 (one of the numbers has rubbed off); 2,514,145. DES Patent 118,241. Canada Patent 395,824. England DES 835,357.” AND “DE V - De Vilbiss Dust Respirator Bureau of Mines Approved Type MSD 505.”

*Mine mask is marked “The DeVilbiss Co. BM2121 Made in U.S.A.

Material(s)/Format: A combination of rubber-like plastic, metal & cloth material.

Size/Measurements: Mask measures approximately 4" x 4"

Quantity: One (1) box containing one (1) respiration mask & a packet of two (2) extra valves for respirator,

Condition: Overall rating for this set is excellent!

*Aesthetically, the respirator mask remains in excellent condition, with this rating being arrived at by averaging out the combined respective condition factors of the rubber mask & strap, replacement valves, metal parts and cloth material separately.

The rubber portions of the mask & strap remain in excellent, supple condition, exhibiting no cracking or damage.

The two (2) extra valves are in pristine, mint condition.

The metal part of the mask remains in excellent condition.

The cloth parts of the respirator are in good condition, remaining completely intact but exhibiting a not-unusual amount of soiling/staining.

*Box is in very good condition, remaining completely intact, retaining excellent graphics with overall vibrant coloration, and evincing no tears or rips. There are a couple of crossed-out marks, as well as some creases, paper surface rubbing and corners/edge wear.


Price = 34.99 USD

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