G3886 - serial number, frame built in late 1996.
45 - different font size, non-standard marking.
55C - frame size 55 cm, C - marking used at the time only on the Corsa 01 model.
Paint pattern introduced in 2000 for the 2001 season used on Team Domo Farm Frites, frame painted in EMC.
Information posted on a piece of paper attached to the fork steering tube would be very helpful.