Just thought that one of the pressed glass experts might recognize this pattern before I wade into the 'Master Books'
Bottoms have the flat ground/polished outer rims, and tragically there has been damage to one of the tops, and although nothing is missing the gluing job hasn't been carried out too expertly. Impressive, and I hadn't been aware of seeing them before, and despite the damage couldn't pass them up. They stand at about 290mm/almost 11.5 inches, so quite tall. Grateful if anyone does know the design, and thanks for looking.