Meccano Compatible 31 Hole Flat Girder Part 103? Mid Green ( CMC ) x4 - close match to 1950's Red / Green era.

These parts are made by the Corlust Meccano Club and known for their accuracy and sold worldwide, they are made from half hard 0.85mm strip steel same as original Meccano parts. They are etch primed and wet painted and colours blended to a very close match to original. 

The CMC have been making Meccano compatible parts for over 15 years.