otp: math book

I need to praise the person who is an HS reader and made a good math book, and inserted HS into it. Can anyone find please or knows who uploaded this (I couldn’t)?

2

Being so self-absorbed I don’t usually post stuff outside my own work. However, as I was working on a house I found this treat in the attic. It was among a bunch of someone’s schoolbooks dating back to 1983. I decided to keep it rather than throw it in the skip. I’ve been scratching my head on the font, I’m pretty sure it’s Univers but like a little skewed. Either way, I imagine these as a set and reckon they would look pretty lovely together.