I came across this old scope while sorting some gear, it's a vintage Jap optics BSA 4 x 33 with fine reticle in not bad condition, few marks here and there, complete with leather lens caps. It has a serial number and the look and feel of it made me wonder if it's collectable as it's a good quality bit of kit. The eye bell grip rings looks like the old Redfield ones, anyway, so thought I should ask on here before advertising it. It would look the part on the right gun so any idea of value ? A few pictures below. Thanks.

https://flic.kr/p/Nb4A2v
https://flic.kr/p/2bW9MUH
https://flic.kr/p/2bW9N2r
https://flic.kr/p/2bRMx1b
https://flic.kr/p/Nb4AhR
https://flic.kr/p/2bW9Mnv