Feel like I'm making harder work of this than I should be. I have 2 left, 1d and 26a. Have answers I don't understand for 20 and 17 - can someone confirm 20 is a highway and 17 is an old name for 28 and one of the 2 features?
Assuming they are correct, then I need a number somewhere in 1 / 26 and one of them must be a 'device', presumably from 2019 (or possibly 1899). Can someone confirm this last sentence is correct without giving anything else away (still trying to solve (largely) unaided).
Many thanks