View of Θ 1855 in situ ... Scanned 2005 for the 75th anniversary exhibition and publication. 1692 Horizontal (normal) ... 17 Jul 1946
View of Θ 1855 in situ ... AMS 1692 Horizontal (normal) ... 17 Jul 1946
View of Θ 1855 in situ ... AMS 1692 Horizontal (normal)
The tile standard ... southwest 2496 ... August 1967