Beeman R1 - Determine Value for Sale

I bought my Beeman R1 .177 on November 14, 1981 from Robert Beeman's modest shop on Paul Drive in northern San Rafael, California, At the time of purchase he told me it would be a collectors gun because it was double stamped on the left side. I took that to be sales talk but it did resonate with me because I found it curious he would say that. 

I have all the paperwork including my original receipt, owners manual, care and maintenance manual, the Percision Airgun Guide (Winter 1981), and the sight-in target it came with. I have an original Beeman pellet tin, more Beeman Precision Airgun Guides (4 books) and one Beeman Airgun News (pamphlet) which was mailed to my home address from the Paul Drive address. 

The R1 has been properly stored and is in excellent condition, I have not fired it in years and the last time it was fired it was using Beeman cleaning pellets. I've come across a couple of forums that said only the first couple of R1's were double stamped on the left side (rare), and there's only one other R1 like in known existence which is in a 'Beeman Museum" (?). I have not been able to search up a 'Beeman Museum", and I can not find an 'Airgun Blue Book'. See this link for a picture of the double stamp. https://www.airgunnation.com/topic/some-rare-markings-airguns/

All that to say I know I have something rare and special but I need someone to point me to sites /groups /places where I can have it fairly appraised. 

Please comment. Tim Magee
 
Tenth addition Blue Book gives a 100% condition base price of $625 Add 25% for San Rafael address. Which would put it at $782 so that is what I would call a practical value.

Now what would a complete R1 collector NUT pay for it...hard to tell. With all your documentation and the unique stamping maybe add another 25% to 50% consevatively.

About the only way to truely know is at the auction block.
 
The R1's have not been doing well retail wise unless it's one of the less common versions such as left hand, Field Target, Tyrolean, .25, etc. Several have sold in the past year in the standard form for unimpressive prices. The "there's only one other R1 like in known existence which is in a Beeman Museum" (?) is way off the mark, I own 2 myself. What I recall being said about the left side stamp is they are rare for sure but that the Beeman museum had only one or two not that there were that many in existence, I mentioned this in my post you mentioned in "see this link".

Over the years I have seen at least few for sale but no mention was made of them being rare as many have no idea they exist or the rarity of the 2 stamps on one/left side.

Here is one of my double left side stamp R1's

93 R1 Left side view .22.1605471470.JPG

 
Loren, thank you for your input. You seem very knowledgeable. I searched for a 'Tenth edition Blue Book' and found a hard copy online ($49.00), but did not find a digital copy of it for me to read. Therefore I'm going to use your rather impressive structured approach and unofficial assessment of my R1 as foundational information when determining my sales price. You mentioned the price value may change once it's on the 'auction block". I understood that to mean once it's advertised on eBay, Amazon, Gunbroker, etc? If there's a preferred air rifle sales site I should know about please advize. PS. I don't have 10 posts so do not qualify to list it on the AirGunNation Classifieds.

If you're in a gracious mood and you have the time, please look up the Blue Book value of a Beeman /Webley Tempest model 2281 for me. I bought the pistol at the Santa Rosa Calif store on Airway Drive on 12/29/91. As with the R1 I have the bill of sale and all the manuals and the original box. The Tempest comes with Beeman custom wood grips and a formed-fitting left-handed holster which on the back is stamped into the leather: 'CUSTOM MADE FOR', then there's the full Beeman logo, and below that it says 'BY BIANCHI'. The pistol is in Great, condition but it's probably not Excellent as some of the serial number white lettering has faded. Might as well sell the Tempest also.

What's the verbiage which describes: Excellent, Very Good, Good,....etc? 

Apologize for being uninformed. Thank you once again!