Over 25 years ago a sporting goods store in Florida was closing and I bought the remaining inventory of their Maurilio #8 call. They still are in the original cloth pouches and have the directions. I think I have about 15 or so. I've not been able to find any listed on the internet or elsewhere and the phone number on the instructions for the distributor has been disconnected. Do you know if these calls have any collector value? Thank you in advance for your expertise and guidance.