Christie's Travel and Vintage Poster sale. You can view the ecatalogue here - you won't be disappointed, there are loads of great travel posters, but these Olivetti ones get my bid (or they would if I'd saved a few more pennies this year).
Olivetti Divisumma (above top) by Herbert Bayer (1953) is lot number 252. It's a linen-backed, lithographic print (71 x 51cm) classed as A- condition with an estimation of £1000-£1500.
Olivetti Elettrosumma 22 (above bottom) by Giovanni Pintori is lot number 255. This lithographic print (70 x 49 cm) printed by Arti Grafiche M & G Pirovano in 1956 is not backed, but is classed as A condition and has an estimation of £600-£800.
Find more sale information here. Happy bidding!
Images copyright Christie's.
Via Quad Royal.