The OP had a good suggestion. I doubt the mfrs will jump on it, but it's still a reasonable request.
For us (wife & I), however, the taking of a quick picture (lighting, posing, focus, etc. NOT IMPORTANT) or two and then printing a paper copy and putting it in the engine box is spot-on. We do that with all of our Christmas tree ornaments....paper picture in the storage box by cell. And, she does that with her bazillion shoes....a simple picture inside the end of each clear plastic shoe box. Sometimes I've used the picture/copy technique for a repaired item subsequently sent to a customer to better inform them of any internal changes that they should be aware of for maintenance purposes, etc.. And we don't store such photos on the computer or a flash stick.....waste of 'space'. (If one's life is so chaotic as to lose a piece of paper created for this purpose, you need more than computer storage space......IMHO!)
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Now, here's something I asked the mfrs for that they can't seem to step up to for some reason!!!...
Those HUGE pieces of formed sheet plastic used in packaging.....for example, the base and cover used to package those residential house accessories....? Why can't they put the appropriate recycling symbol on those in order to have them 'qualify' for curbside recycling pickup???? Our township service does not allow anything without the appropriate triangular/numerical symbol to be placed in the recycling tub. NOT a petty issue when we're made to feel guilty for not doing our part to reduce landfill waste!!! You put the symbol in the cheap die that makes these plastic pieces of packaging poop, and the mfr has done their job so we can do our job to help the environment.
Tell me, Mr. Manufacturer......Why can't this be done after repeated polite requests????
There, I feel better. I don't know why.....it's like yelling down an empty well hole.