This is a follow up article to my previous "Dating Serbian crown caps using factory signs". It had come out of a fruitful discussion with a young Serbian cap collector Stefan Sindjic who filled me with details on FS used on Serbian caps since the 1960's. His table created in communication with the cap producer confirmed what I have discovered by comparing and analyzing FS in my previous article, but also extended in more detail in the 20th century, and filled in some uncertanties at the beginning of the 21. century. It turned out that in last 50 years almost all Serbian caps came from the same company, but which changed names, and thus factory signs (FS) on the caps they were producing. The company was initially called Metaloplastika Šabac, and that was their FS (in uppercase letters) in the 1960's and 1970's. In the 1980's they shortened it to initials "MP", and in the 1990's lowercased it to "mp". NATO bombing of Serbia in 1999. have put the last nail in the coffin of its economy, bancrupt by 8 previous years of wars of secession and break-up of Jugoslavia, opened room in crown cap market at the begining of the 21. century for Italian producer New Box (FS "n"), and another domestic producer Impa (FS "iM"). In the mean time Metaloplastika was privatized by Galeb Group in 2002, which also bought Impa in 2006, and in 2007. came out with their new FS "GM" (that stands for Galeb Metaloplastika). From 2008. they produce caps with "GG" FS (Galeb Group), and in 2016. they changed into today's FS "GMP" (Galeb Metal Pack, division of GG). In 2014/15. Serbia had a brief run of caps from Slovakian producer with FS "tik":

factory sign (FS)	FS transcription	period of use
	METALOPLASTIKA ŠABAC	1960's and 1970's
	MP	1980's
	mp	1990's, until 2002.
	n	2003 - 2006
	iM	2003 - 2006
	GM	2007
	GG	2008 - 2015
	tik	2014 - 2015
	GMP	2016 - 2021