Allen Wheelock 32 center hammer single shot, cal 32 RF 

Allen Wheelock 32 center hammer single shot, cal 32 RF  Flayderman P 66/67, iem 5A 080

This one has the half round, half octagon barrel  and no overlap. .Has the allen wheelock adress on the left side of the barrel, bit light but all there. 

Overall  medium brown and very sharp angles, pitting in the  bore , fine orig. grips and works  as should be, in total there are 6 variations and only approx 500 tol a 1000 made for all variations.