I am building a rifle in 7x57 on an Interarms Mark X barreled receiver and am looking for a trigger with side safety. An origional Interarms Mark X trigger would be the best, but I am open to a Timney and others of similar style. I have a Timney without side safety for trade if interested or I will purchase your trigger outright. Thank you.

Yes, just get one from Midway; the original triggers are crap and I don't use them. I throw them in a parts box, and I've got 20 of them. Parts boxes I mean. Unfortunately I have no idea where all those triggers ended up.
Sell your non safety one here. It will sell easily.

Yes, you are probably right in what you say. And I may ultimately do that, but at the moment I was checking out the potential options.

I think this is a Timney trigger. I found it loose in a bigger box years ago and scotched taped it in a Timney container. Not sure if this is the correct container.

Click on image to enlarge.

That is not a Timney; that is the one they removed when they installed the Timney. That looks very similar to the MkX; it looks like an FN supreme.

I went down and dug out a MarkX action, and found the trigger loose in a bag and a replacement I'd installed in the action; so this one is yours for $65 shipped if you want it.

SSDave and all, I believe I have found a trigger for trade, so I am now all set. Thank to all that responded.