I'm struggling to get any backlinks for my antiques site. Any suggestions would be highly appreciated.
What did you try so far? Guest posts are probably the first thing I would suggest you, if your site doesn't need any on-site SEO first.
do off page . Article submission is a powerful tool. Do social media and other popular tools like facebook,tumbler,pinterest etc.social bookmarking is must. Comment on blogs.directory and classified submission are very old techniques but still relevant. Press release is another thing to attain backlinks. Forum posting should be done frequently. Otherwise you can hire a web design company to do the seo for you.
Article submission is good but try and keep the articles unique on the sites that you choose to submit too, here are some popular article directories that have been around for long time: Articlesbase.com, Ezineartices.com, Streetarticles.com and Otherarticles.com. Pick 1 or all the articles directories to submit your content to but try and avoid duplicate content if you can.