The half masks in my collection. Top row, right to left, MSA Dustfoe #66, MSA Comfo (the 1937 type), modern MSA Comfo (heavily damaged). The mask on the bottom is the US
VTG Miners Mining MSA Dustfoe #55 Tin | eBay
Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK
MSA Dust and Mist Filters for Dustfoe 66 Respirator 457485
Vintage Mine Safety Appliance MSA Dustfoe #66 Kit - Conseil scolaire francophone de Terre-Neuve et Labrador
DustFoe | Gas Mask and Respirator Wiki | Fandom
Vintage MSA Mine Safety Appliance Respirate Dustfoe #66 Kit USA- Decor Use ONLY | eBay
Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK
MSA Dustfoe Respirator No. CM-76869 #66 Mine Safety for Dusts and Mists Vintage | #1884749075
MSA Dustfoe Respirator Mask Can - Tin | Baltimore Museum of Industry
Vintage Mining Appliance “Dustfoe” Mid Century Tool by MSA in Tin | eBay
Old Vtg Miners Mining MSA Dustfoe #66 Respirator Dust Mask Metal Tin Gas Mask | #1845916345
Vintage MSA Mine Safety Appliance Respirate Dustfoe #66 Kit USA- Decor Use ONLY | eBay