1933 Trials sniper

[Ridolpho]

Personally I think it's a tremendous feature of this forum that postings identifying interesting auctions/ sales are encouraged. If, like me, you don't have time to sit on the interweb all day, seven days a week, the forum is like an intelligent search engine! Nothing is more frustrating than missing out on a crack at something you're after by virtue of simply not knowing about it. For example, a Trials T was listed on CanadianGunnutz early one morning this week but was gone by the time I brewed a coffee and turned on the computer.
Regarding the rifle discussed in this thread, could someone comment on the significance of the "TR" on the left cheek? I understand the origin of this marking on later No. 4 T's but fail to see why it would be present on one but not all converted No. 4 Trials rifles.

Ridolpho