1435 Discreet brand with heel to decipher vase

From the art nouveau period, this large hand-painted blown glass vase with a hexagonal collar, decorated with a wooded landscape on a degraded orange background in the centre, unsigned but with a brand at the heel, in good condition. No cracks or sparkles. Decor of a plane flying over 2 children walking at the foot of a small pastoral village. All of the many photos complete this detailed description. Very careful shipping and followed in relay point when possible given the current health context complicating home deliveries.