Is this some kind of credit card scam?

I purchase an item from an out state auction house and need it shipped which is something the local to them UPS store offers. This UPS store is insisting I give them photos of my credit card for them to process the payment to ship my items. The shipping total is $70. Isn’t this unsafe to send photos of your credit card and something they shouldn’t be asking for? They are insisting I must send a photo and numbers alone don’t suffice.