Loetz Spiralglas

Thanks to a tip from Reiner (Loetzforever), I bought this extra Christmas present. The small vase Spiralglas mit astartig Baumstamm und roten Beeren (Spiralglass with astartig tree trunk and red berries) measures 11 x 10.5 cm. Probably one of the non-preserved PP II-3378, 3379 or 3380 (year 1906). Similar PN II-3377, II-3396. The pontil does not correspond to the standard idea of a Loetz pontil. Probably related to the production technique???