I was shocked to see that certain sellers indicate that they stock a hand made left-handed violin. These sellers say that they are 'extremely popular among music instructors and schools', they are NOT, since a left handed violin should NOT exist and is definitely NEVER encouraged, for the basic reason that if playing in an orchestra all the violinists have to play in the same direction otherwise it would cause havoc with the other bows.
Also, a left-handed person is actually more agile with their left hand and therefore can change fingering more easily, so if anything a right-handed violin is to their advantage. These sellers insist that it is not a converted right-handed violin, but that is all it is. As to hand made, all violins are hand made. The only part that has been specially made for these particular left-handed violins is the chin rest but for the rest all these sellers have done is changed the strings around and turned the bridge around.
They also add that an ebony tail piece is the best, this again is not necessarily true as you will find many professional violinists using an alloy tail piece.
Certain sellers claim to sell Helmke violins, this appears to be a made-up maker and all they are selling is in fact cheap Chinese violins. Having an ID label inside does NOT make them genuine or even quality, some of the best violins are unmarked.
Be AWARE that you get what you pay for and even if you have a small budget then it will have been wasted on a cheap violin that will perhaps vibrate (buzz) and/or even fall to pieces shortly after purchase and in the end you will have to buy another one, so why not invest in a better quality violin in the first place.
A cheap violin is not re-sellable whereas a quality violin gains value over the years (if treated well) and so you will always be able to get back what you invested. If you really are looking to buy off eBay then make sure there are lots of photos (clear, not out of focus) and if possible go and see the violin, because it really is hard to judge from photos alone, after all you really don't know who the seller is and the cost of sending back a cheap or damaged violin will be at your own expense (as you have to send it back recorded delivery and insured, to make sure he gets it back, safe and sound) and all that can work out to be almost as much as you paid in the first place.
Buying your first violin should be a happy experience so make sure you buy the right one, from the right person.
Good luck with your search, but remember if you are left-handed then you are special because you will be all the more agile fingered on a 'real' violin. I know as one of my son's is left handed.
All the best, Az