So here's a delight that I found languishing in the forgotten parts of the local Oxfam shop. A complete collection of old keys. The frame is awful but the keys are wonderful with lots of detail in the prongy-bits.
If you're following Laura's daily sketching group then you'll know she likes a good key too - they crop up in her work in the most beautiful way. Even if you don't want to join in the sketching yourself, you could bookmark the page and have a squizz now and then - there's some lovely drawing going on!