Early Loetz production - "Schräg plastisch gerippt"

Here is an example of "schräg plastisch gerippt" in three versions. All vases were made by the Loetz glassworks around 1890.
First vase - Opal Regenbogen (Rainbow), PPN I-2222, dimensions: 28.2 x 15.8 cm, DEK I/32
Second vase - opal whitish - blue spreading (see: Loetz Band I - Fig. 13, pp. 67)
Third vase - Kristall, PPN I-2222, dimensions: 28.3 x 16 cm, DEK ???