Quote Originally Posted by Alan de Enfield View Post
Don't forget that the Brits 'invented' the cross-screw, the Indians then copied it some time later.

Are there any other indications of Indian usage or markings ?
The Indians tended to completely scrub the original markings so if the manufacturer, date and serial are still there it may not have the Indians who put the cross bolt (screw) in.
Hmmmm. You might be on to something. I assumed with the Ishy screw and not seeing any stamps on the receiver flat that it had been scrubbed but you piqued my curiosity and with a magnifying glass and angled light source I can just make out o4 MkI (F) FT so I assume the N at the beginning and the R at the end are illegible. So maybe no Ishapore scrubbing, just a worn lightly struck stamp. Further, the receiver looks like it was painted with Suncorite further hiding the stamps.
Do you think a 4 digit serial number Shirley is worthy of preservation as is?