Handsome spruce. Is it growing near the P. toranos you posted earlier? Do they get supplemental watering or are they ”free range” as Ken would say? They look healthy and happy.

I don't know how tall your tree is c50, but in the link below I think I found a possible clue:

' A group of three grown from Priest 108, collected at Ejido do la Encantada, Zaragoza, Nuevo León in 1984, are particularly attractive; they were approximately 5 m tall when observed in 2005 but have since grown considerably, and produce a heavy crop of cones each year. '

So even if the 3 trees started producing cones at 5 m tall or after they 'grew considerably', it would still be apparent that they took at least 20 years to achieve the 5 m (16.4042 ft.) height and it was at that time or imo sometime later that cone production began.

https://www.treesandshrubsonline.org/articles/picea/picea-martinezii/

Beautiful tree for sure!

My tallest Martinez spruce is now through growing for 2023 season and topped out at 15.5'

Maybe cones in 2024 ???..../Hahaha !

Anticipation is part of the fun, for sure.

In tree time, it's just a wink of the eye. ;-)