One way to cut thru the argument
I am not having an argument. I am only working to get history recorded correctly from a STATEMENT made that said MBs came with glass fuel bowls on factory installed fuel pumps.
With you last posted data I now better understand how the glass bowl fuel statement was made. Please correct me with hard data if this incorrect.
The ORD 8 SNL G503 dated August 1951 lists only one MB fuel pump bowl ( A-1494 ) for three ( 3 ) fuel pumps numbered AC-1538886, AC-1537766, and AC-1538312.
During WW2 these 3 fuel pumps had to compile with the Government spec. in place at the time to be allowed to be installed on new MBs. In post war times there were no construction specs. involved in selling Willys-Overland / AC fuel pumps in the civilian market . Since ( at least in 1941 ) the glass fuel pump bowl was about 8 times cheaper than the metal bowl ( plus civilians like to watch the bubbles in the bowl ), Willys or AC ( could have been either ) purchased / made pumps with the cheaper glass bowl but with the MB AC part numbers stamped into the body so if they did need to sell pumps to a government all they had to do was change out the bowls for a metal spec'ed one from pumps in stock or new production and they were good to go to sell to either a government or civilian market with no change in parts tooling.