5 Swiss Francs...(29/8)

I was strolling along the hilly road in the centre of Lausanne. I was curious and stopped by an antique shop. The display was full of old coins of different face values and design. I looked at them, and I saw this 5 swiss franc coin. The appearance was like those which are circulating in Switzerland. I thought it must be a memorable or a special edition one. The year of production, as shown on the coin, was 1968. So it was like 42 years. Then I puzzled, how come it would value at 500CHF? Was 1968 a very special year, or were there some samples manufactured that had deviated from the conventional 1968 coins? I remembered that I had a 5-franc coin in my pocket...I took it out and had a look. Mine was also a 1968?! There was a 'B' below the year on my coin, and I stared at the coin in the display again. It was small but I guessed it was an 'A'. It must be an 'A' and so I guessed there must be 2 editions in 1968 to make a rare one more collectable and valuable. I was hoping to enter the shop to ask, but it was closed...anyway, I took a photo. When I came back and looked at the photo again. Oh it was also a 'B', and so why? My query was never answered...I thought about my coin. Oh, basically I ended my day trip visiting a porcelain museum, and I used the coin for my entrance. Funny though, let me check again my upcoming 5-franc coin when I get my next one...

Value is a matter of 'used-to-be', I guess.