The only way that I can tell you to reduce a pic is to open it in a photo editor and select image then size and reduce until it is less than the minimum, saving it as a copy so you can keep the original is your best bet.
Open the photo in an editor, (almost anything that opens a photo) there should be a tab at the top for "image" and in there one for "resample" from there you can reduce the image by size or resolution. PM me if you can't do that I am off this weekend and could do it for you. (old computer...
One of my buddies has a stick that looks close to that one, was made by huebler "several" years ago, just ask him he'll tell you how long ago.
Might try sending the pics to huebler, they could tell you if it is one of theirs.