miracle plate

[feral53]

Hello people, New kid on the block, recently retired in philippines, Been unpacking my gear and cannot find the fitting's for my Miracle Plate, they don't match the tap and dye tool's etc that i have They look to be 1/2", i know they are old and a bit worn Can any one out there give me the correct thread type and size please, plate (est age of plate1955 1960)

 

[flaggycreek]

Possibly bsp thread. You will need to measure o.d and I.d and threads per inch to identify the thread. Alternatively get some fittings of known threads and try them.
Cebu is a great place, spent a few days staying at Toledo working at Carmen Copper. Also had a few drinks at Athena ... mmm