I just received a reply from the Tullie House Museum and Art Gallery about how to donate to the Crosby Garrett Roman Helmet Appeal:
“People can phone and pledge their donation on 01228 618743 or they can fill the attached donation form and send it back with their preferred method of payment.”
Download the donation form here: Donation form – gift aid (word document) right click and save. You can donate by credit and debit card using this form. No mention of Paypal or any online payment methods though.
Crosby Garrett Roman Helmet Appeal