Help identify these side feed injectors.

[RotaryHog]

Hey what's up Zilvia.net.
I'm new to this forum and new to nissans all together.
I'm originally and always will be a Mazda Rotary head but I appreciate anything that likes to hit the track and have some fun.
A few friends have Nissan 240's and I have no complaints.
The most recent build up was a friends S13 (built and owned by the homie InertiaDrft)
and the next one is a S13 with a RB25(owned by Mute of drifiting.com)
Well we have a small bunch of injectors here.
All are side feed.
But I am not sure which ones are which.
There is one set of 4 matching injectors.
Then there is a set of 6.
Does anyone have a refference online or otherwise to help find out which ones are which. All of the part numbers are clearly visible as are the color of the top of the injector. It was by the part number and color that I was able to figure out that it seems there are 2 sets.
From all the stuff in the box I am lead to believe that one set is stock RB25, another maybe Nismo and the other Tomei.
There are empty boxes of both brands in the box with the jumbled injectors so it's only an assumption at this point.

So, anyone know how to tell which ones are which?
I searched online already but you know how retail sites are......they only post generic pictures so I have no way of telling what I actually have by the pic they show.

Thanks in advance for all the help.