What's my rare coin set worth

I have acquired 8 coin sets from Kenya all dated 1973 and containing 7 coins from 5 shillings to 5 cents. They are all proof versions of each coin. The book says that there were only 500 of these sets produced and because they are so rare I cannot actually find another set that has sold either at auction or on eBay so am struggling to set a realistic price. Can anyone help?
Thanks

 

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Well, I've got a ballpark figure. My 1991 Krause has a value of $140 - adjusted for inflation is $385. It does seem fairly valuable.

 

@7Jags might be able to help.

 

Thanks. My standard catalogue world coins 1901 to 2000 says $275 but it would be nice to actually find one that has sold.

 

These are beautiful coins. One issue is that foreign coins generally will sell less from the book price in US markets.
Although only 500 sets were produced the survival rate is going to be incredibly high. NGC says $45 for the 5 shilling. $30 1 shilling. $35 2 shilling. $25 ten cent. $25 5 cent. $35 25 cent. $25 50 cent. That's $220 total for high retail. However,
those prices are for PF 65 coins and these appear much better. (68,69,70) So they are worth more.

 

FWIW, here's what little I know. Not my series although I have a couple of the King's Norton specimen coins from a bit earlier.
2020 Krause has the 7 coin 1973 Kenya Set at 225 dollars.
However, that is a shot in the dark. None are for sale on eBay and google search really does not help.
The Royal Mint had a mintage LIMIT of 500 sets but this does not mean that full amount were sold. We know that in the case of other Commonwealth nations that often many less were actually struck and/or there were returns of the excess stock. Other searches turn up blank. "Worthpoint" has one mentioned as sold but unless you belong, that information is not available.

BUT, a bit of a caveat: my general feel is that demand was low then and likely has not picked up. So, lower mintage = supply but demand is also low. If you were to put it on eBay, it might draw the interest of two or more bidders but if it does not, it would be either a "No Sale" or go low. Speculatively, maybe set a starting price of 250 and see if they bite