No problem, wish I knew the maker for you. It's going together in the next couple weeks so I'll put a pic up for you when it's all done. By the way your stock is fantastic looking. Hard to find a stock like that now days unless you want to spend lots of $$$$$$$$. I got lucky with finding mine. Those caps look interesting. Are they wood? wood grain in them? Otherwise they look like they very well could be Ivory of some sort. I don't know when They quit allowing the importation of Ivory, but your original build date may be close to that date. Did your father in law ever go to Africa?
Any way you put it, you have a great looking rifle. Looks to be nothing special about the rifle itself other than being a Pre-64 possibly according to your research, which are sought after rifles. The stock alone very well could be worth more than the rifle itself, but together they make a great pair. It might be in your best interest to get an appraisal for Insurance purposes in case of a fire or theft. If it were mine, I would clean and oil it stick it in the safe and shoot it on the range once in a while. I would go out and buy a hunting rifle to use for that purpose. It sounds like it's worth more to you sentimentally than monetary value, so that's why I say that, and you had quite a few hunting seasons with this rifle already. To me it's served a purpose over the past 45+ years any maybe time for retirement. That being said, if you still want to use it by all means go ahead and use it for another 40 years.
I'll take mine out and use it cause I can always refinish it and it doesn't mean much sentimentally to me, otherwise some may say that wood is too fancy to be on a hunting rifle.
Looks like an old Weaver K-4 or K-6 on there too! I have an old K-6 on a .22-250, nice old scopes!