Morning I am new to this so help! I have a Feinwekbau 100 pistol which I have not used for a few years. I tried it yesterday and it fired ok but think it probably needs a new seal as it took a couple of actions with the lever to get the air (hope that makes sense) Not sure I will ever use it and seems a shame to just leave it in its case and put shots through it now and again. It is in a reasonably good used condition. Not really sure what to do with it so advice on a valuation or cost of replacing seal etc. Or does anyone want to make an offer. Thanks