These Caps are way too small - these are more in the 10-15mm mark.View attachment 1825489
What about theese screw on caps a possible candidate for the mystery knob, that fell off the DL 44 on Finse?
1. The SP220 scope was made in the UK.
2. The scope was used on the DH 17, making the caps an available item for the prop builders
3. The depth seems to accomedate the height of the screws.
Not sure of the width, ive asked a guy who's currently selling one such scope.
If its 27mm +- it would certainly fit.