Hella KLJ80 lamp with blue lens 12V

Hella KLJ80 lamp rotating beacon in used condition. The 12V lamp is working very well. The blue lens has a drilled hole (see image 2). The lens is stamped with " CH1 1280 01, CH1 1280 02, Hella, Made in Germany”. The white / ivory base is without dents and it has the original Hella sticker. The base diameter is 21,5 cm, the height of the base is 4,5 cm, the height of the blue lens is 18,5 cm and the total height is 23 cm.