WW1 'Periscope Prism company' sniper scope???

[Promo]

lmg15, may I be evil and add an alternative to the SMLE PPCo mounted Aldis scope: The Aldis scope for the PPCo dovetail mount were not equipped with the scope ring at PPCo, but at another company and therefore do not have the same marking on the tube as with the PPCo mount for the P.14/No. 3 (T) rifle. Or do the contracts show something differently?