by Infanteer Thu Jun 09, 2016 9:35 pm
He is in fact looking for a variant of P'37 equipment which can be seen on Karkeeweb.com. Apparently in 1940 a slightly modified version of the P'08 entrenching tool equipment was introduced. It seems that it must have been short lived and/or issued in low numbers considering few people are familiar with it today.
Also, it would appear that the photo shown in the OP is not correct as the example shown on Karkeeweb has the press stud mounted on the reverse side (next to soldier's body) and has a handle retaining loop.