Just for future reference, I don't think "I can't find this where I live" is a legitimate objection to a mission. That's just going to make the hunt a race to post pictures of common things. Boring. It's ok to sit out a mission if it doesn't work in your region.
I'll remind everyone of the usefulness of the Mr. Bill rules when a mission turns out to be a stumper. Generally, I think 48-72 hours were the periods of time before those clicked in.